Just a blackmail idea
MC is a dickgirl, hiding the facts behind a female identity.
YC is a bully in the neighbourhood, university or whatever.
She has a haunch about MC real appearance and wants to expose her to her gang and take fotos for blackmailing.
They ambush MC and pull her pants down, filming everything. She is quickly released pulling her pants up, so nobody else watches it. MC is owned without immediately knowing it but when YC approaches her with demands she realised her new situation.
This can go various ways, with demanding more time after time.
MC is a dickgirl, hiding the facts behind a female identity.
YC is a bully in the neighbourhood, university or whatever.
She has a haunch about MC real appearance and wants to expose her to her gang and take fotos for blackmailing.
They ambush MC and pull her pants down, filming everything. She is quickly released pulling her pants up, so nobody else watches it. MC is owned without immediately knowing it but when YC approaches her with demands she realised her new situation.
This can go various ways, with demanding more time after time.